I was able to save some files in the Documents folder on my app. How can I access them on the phonegap side of things with jqtouch/javascript/html. I want to do something like:
$('#intro').attr('src','../../Documents/logo.png');
But, apparently, it's not letting me go up all those directories outside of www.
How can I resolve this?
There is a bundle file reader plugin, but it seems to read the contents, not reference it.
https://github.com/phonegap/phonegap-plugins/tree/master/iPhone/BundleFileReader
Not sure you can do what you are asking about. Perhaps you could use the PhoneGap File API to save the files somewhere within your www dir instead? Then they would be available via html/js.
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In my chrome app, I am using HTML5 file system to save the pdf files to sand box.Downloading is working fine.But how do i access that downloaded file path? I want to give that path as webview source.
The best way, if it works, would be to use a filesystem URL. To get this use FileEntry.toURL
These don't work on external files (i.e. files that come from chrome.fileSystem.chooseEntry and are outside the app's sandbox) but should work for files in the app's sandbox.
Note, I am referring to filesystem:// urls not file://urls, which won't work as Marc Rochkind has pointed out in his answer.
Disclaimer: I haven't tested this, but I believe it should work.
You need to get the contents of the PDF into a data URL. See my answer to this question:
Download external pdf files to chrome packaged app's file system
I am currently trying to download a small binary file from the web, in order to upload that to another website, both using the API.
Previous versions seemed to have the "file" API module for such purposes, but I can't see anything similar as of the latest (1.14).
The file to be downloaded would be saved in some form of cache (browser cache, preferably), its path stored somewhere, to be then uploaded to another URL via POST.
How would I go about it, when the process should happen completely in the background?
I checked out the how to download a file page, but can't figure out where to download.
Is there a variable URI for the "Downloads" directory, and does a regular Add-On has write privileges in it?.
This is important, because the add-on must be able to function properly on various platforms.
You can use the pref, browser.download.lastDir, which should work for windows/mac as it will be saved in the OS format. However the pref may not always be set if the person has never downloaded anything before. In that case you'll have to build the directory yourself.
var dir = require("sdk/preferences/service").get('browser.download.lastDir');
To build the directory yourself you're going to have to go a little deeper. Check this article on MDN about File I/O which has examples. The DfltDwnld key should give you the directory you want.
Your add-on will have write permissions to everything Firefox has write permission to.
I want to allow users add files to the application document folder, so I used the iTunes file sharing. The problem is they can only add single files with a flat structure. I want to drag and drop whole folder (even with sub folders) and keep the structure.
Questions I have:
is it possible with iTunes file sharing?
if not, is there an open source project that helps me with writing a pc side app that talks to the iPhone side app and pushes the files into it?
No you can't add Folder's/sub folders, iTunes will show just the files in the documents root. I think the only way to do that is to add it as zip file and you extract it in your app.
Maybe CocoaHTTPServer will help you.
I have an app I'm designing that will allow for lots of PDF viewing. There are a lot of different languages available, and so if I were to include all of them in the app, it would be like 100+ mb in size which just won't fly.
So I'm thinking that I am going to put the pdf's on my server, and access them with a direct download link like this:
http://mysite.com/pdfs/thepdf.pdf
Which will return the exact pdf I want. So I'm wondering how I can go about accessing these resources as I download them on the fly?
I imagine I need to save the pdf's to the app resources folder? And then when a tableView row for the pdf is selected, I check if the pdf is in the resources folder (how do I do that?), and if not, pull it down off the server, and load it into my view?
I think I have an okay idea of what I need to do, just not very clear on the code to do it. Can anybody post the code for accessing the resources folder (if that's actually what I need to be doing), and maybe the code for how to check if something is in the resources folder?
Thanks!
Have you considered using a UIWebView to view the PDF instead of downloading and loading it yourself? UIWebView should take care of caching, so you won't have to worry about that.
Assuming that a UIWebView won't work, to download PDFs and see if they exist, you need to store it in the Documents folder. The resources folder cannot be altered after you submit your app to Apple, but the Documents folder in your app is completely fine. To access it, I would actually recommend ConciseKit, which can be found on GitHub. It gives you a helper method to access your app's document directory. The helper method is
[$ documentPath];
Then you can get the path for a file by doing
[[$ documentPath] stringByAppendingPathComponent:#"file.pdf"];
So that is how you get a path to a file, to check if it exists, you want to use NSFileManager.
[[NSFileManager defaultManager] fileExistsAtPath:#"path from above"];
I was wondering if I could add the files to the app resources from an external url. As in suppose I see a url which has a nice image. Can I download that from the website and add it as a resource and use it locally for later use ? I am sure there is way But Need some guidance on how to approach the problem and The set of Classes that could be used with explanantion.
Thanks,
You can't change anything in your app bundle after it has been signed. If you did, you'd make the signature invalid, and the iPhone would refuse to run your app. Your best bet is to add the files to the Documents or tmp folder. There really isn't much of a reason to have stuff in your own bundle - is there a reason you have to have those images there?